Device for producing writing characters.



G. BAHR.

DEVICE FOR PRODUCING WRITING CHARACTERS.

APPLIOATION FILED SBPT.12, 1010.

1,022,384. Patented Apr. 2, 1912.

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GEORG BAHR, OF BERLIN-CHARLOTTENBURG, GERMANY.

DEVICE FOR PRODUCING WRITING CHARACTERS.

Specification of Letters Patent.

Patented Apr. 2, 1.912.

Application filed September 12, 1910. Serial No. 581,667.

To all whom it may concern Be it known that I, Gnono BAIIR, a subject ofthe German Emperor, and resident of Franklinstrassc 99,Berlin-(harlotteir burg, Germany, have invented certain new and usefulImprcwements in Devices for Producing l/Vriting Characters, of which thefollowing is a specification.

My invention relates to a device for producing writing characters by theuse of a transparent plate or straight edge of celluloid, glass or thelike provided with incisions for use in guiding a marker. The plate orstraight: edge is so disposed as to move along a guide such as aT-square but in such a manner that the wet writing is not affected bythe displacement of the plate or straight edge. As compared withpreviously proposed devices of this kind, the novel and essentialfeature of the invention consists in that the transparent plate orstraight edge is provided with successively arranged incisions some ofwhich form guides for whole letters while others form guides for onlyparts of letters, namely of parts which have the same form in variousletters so that by suitably adjusting the plate or straight edge wholeletters and parts thereof can be readily drawn. \Vith this arrangementof letters and parts thereof, a complete set of incisions for letteringand numbering can be provided within comparatively small space and insuch a manner as to exclude all free hand tracing of separate portionsof the writing in any letter or number.

The improved device insures ready manipulation as well as the producingof clean and correct writing characters. WVith similar apparatusheretofore in use an easy manipulation of same has not been possible forthe reason that the various characters and signs have not beensystematically arranged and that the apparatus is often too large andtoo complicated for the reason that each writing character and numberwas complete. Some of the known apparatus necessitate the completing ofsome of the letters by hand so that the finish of the writing is in manycases objectionable.

It is advantageous to provide in the plate or straight edge variousholes between the characters or incisions at difierent distances fromthe ground line, their use being for the production of stops and lines,espe cially horizontal lines, by inserting the pen therein and suitablyshifting the plate or straight edge.

For writing with the aid of the aforesaid plate or straight edge it isadvantageous to use pens having a tubular nozzle in connection with areservoir.

The accompanying drawing shows several arrangements by way of example:

Figure 1 shows a plan of a suitable device for writing capital letters,the plate or straight edge being mounted in a guide arranged on aT-square. Fig. 2 is a cross section on the line I-I of Fig. 1. Fig. 3shows a face-view of a plate for use in writing small letters. Fig. 4shows in plan and section various separate letters or numerals. Fig. 5is a front view and Fig. 6 is a longitudinal section of the writing pen.

According to Fig. 11, the numeral 1 denotes a T-squarc and 2 denotes theholder or guide for the transparent plate or straight edge 3. The holder2 is advantageously formed with a handle 4 and with a spring-clip 5 orthe like for holding the plate or straight-edge. The plate or straightedge 3 has several complete writing characters such for example as theletter N marked 6, letter Z marked 7, letter U marked 8, letter O marked9, the.

numeral 2 marked 10, and so forth. The numerals 11, 12, 13, I l and soforth serve for tracing parts of letters and some of them may be usedfor completing letters by shifting the plate or straight edge. Holes 20are provided at various distances from the ground line 91 so as to servefor making stops and also for making lines by leaving the pen in thehole and shifting the plate or straight edge. The same remarks apply tothe plate or straight edge shown in Fig. 3 and various separate lettersor numerals are shown in Fig. 4.

The parts 15 shown in Fig. 4 are provided with guide strips 16 adaptedto be guided along a T-square or the like and they also denote theletters or numbers that can be produced by each part.

The pen for tracing the letters consists of the known shank 1.7 and of areservoir 18 in which is fitted a small tube 19 which projectssufficiently far from the reservoir 18 so as to enable it to reach thewriting surface when inserted in the incisions of the plate or straightedge. The pen shown in Figs. 5 and 6 illustrates an example only, andvarious other forms may be adopted.

The device is used in the following manner. The holder 2 or the guide 16is placed against the edge of the T-square 1 and is then shiftedaccording to the requirements of the parts of either the plate orstraight edge 3 or the separate parts 15. To write the word Puzo forexample, the incisions 22, 8, 7 and 9 are used, each producing acomplete letter. For writing the word Berlin the procedure is as follows:The letter B is formed by tracing part thereof in the incision 22 andthen moving the plate or straight edge 3 to the left until the incision11 forms the lower curved portion of the letter B. Then the straightedge 3 is shifted so as to bring the letter E in the required positionwith respect to the letter B whereupon the pen passes through theincision 23. The letter L is produced by suitably shifting and using theincision 23, which latter may also serve for forming the letter Ialthough for the same purpose the incisions 6, 23, 13 and others may beused. The last letter N is traced in full through the incision 6.Numbers can be produced in the same manner as letters. The plate shownin Fig. 3 and the separate parts shown in Fig. 4 are used in the samemanner.

l/Vhat I claim as my invention and desire to secure by Letters Patent isA device for producing writing characters consisting of a transparentplate or straight edge having a ground line and formed with successivelyarranged incisions and with perforations arranged therein at diiferentdistances from the ground line, a spring-holder for said plate orstraight edge, and a handle on said spring-holder, the latter beingadapted to be guided on a T-square, substantially as set forth. I

In testimony whereof I have hereunto signed my name this 1st dayofSeptember 1910, in the presence of two subscribing witnesses.

GEORG BAHR.

Witnesses HENRY HAsrER, WVOLDEMAR HAUPT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

